Self and Society
* Book: Self and Society. William Irving Thompson.
"In his 2004 book Self and Society: Studies in the Evolution of Consciousness, and in collaboration with the mathematician Ralph Abraham, Thompson related Gebser's structures to periods in the development of mathematics (arithmetic, geometric, algebraic, dynamical, chaotic) and in the history of music." (https://en.wikipedia.org/wiki/William_Irwin_Thompson)